CN2639641Y - Pilot proportional valve for controlling fuel gas safety heat supply proportion - Google Patents
Pilot proportional valve for controlling fuel gas safety heat supply proportion Download PDFInfo
- Publication number
- CN2639641Y CN2639641Y CN 03205019 CN03205019U CN2639641Y CN 2639641 Y CN2639641 Y CN 2639641Y CN 03205019 CN03205019 CN 03205019 CN 03205019 U CN03205019 U CN 03205019U CN 2639641 Y CN2639641 Y CN 2639641Y
- Authority
- CN
- China
- Prior art keywords
- air cavity
- separate space
- electromagnetic coil
- space cover
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000002737 fuel gas Substances 0.000 title abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 230000004907 flux Effects 0.000 claims description 11
- 239000007789 gas Substances 0.000 abstract description 15
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 239000000567 combustion gas Substances 0.000 description 6
- 238000013022 venting Methods 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000002498 deadly effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000009711 regulatory function Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Magnetically Actuated Valves (AREA)
Abstract
A pilot proportional valve for controlling the proportion of safe heat supply of fuel gas is composed of valve body (23), electromagnetic coil (6), movable iron core (2) with thimble spring (7) and sleeve (1) in said electromagnetic coil, cavity isolating sleeve (13) in said valve body, sealing connecting rod (11) with sealing block (16) in said cavity isolating sleeve, diaphragm (8) and diaphragm spring (10) between cavity isolating sleeve and sealing connecting rod. When the electromagnetic valve works, the opening degree of the sealing block on the valve port is controlled and adjusted through the increase of the voltage of the electromagnetic coil, so that when the voltage of the electromagnetic coil is gradually increased, the flow of the valve port is gradually increased from 0, and is reversely and synchronously decreased, and the purpose of proportional control is achieved. The device is suitable for being matched with a gas safety proportion adjusting system in the fields of flame control, boiler control, household heating, accurate proportion control and the like of combustion equipment.
Description
Technical field
The utility model relates to a kind of gas safe heat supply proportional control guide proportion valve, and the safety that belongs to combustion gas is regulated the control technique field.
Background technique
Guide proportion valve in the existing gas safe heat supply ratio control system adopts permanent magnetism to combine with coil magnetic field, mainly is made up of permanent magnets, diaphragm, coil etc., and it mainly acts on is to regulate flow.Because the difference on the structural design, existing guide proportion valve ubiquity the magnetic density conformity and is difficult to defectives such as accurate control, the ratio degree of regulation is not high, fault is more.
Summary of the invention
The purpose of this utility model provides a kind of reasonable in design, can effectively realize flowing to conversion, automatic Regulation, the gas safe heat supply proportional control guide proportion valve that ratio is regulated.
The utility model is a gas safe heat supply proportional control guide proportion valve, comprise valve body, electromagnetic coil, place the moving iron core of band thimble spring in the electromagnetic coil, it is characterized in that being provided with in the valve body separate space cover, be provided with the sealing connecting rod with the mutually related sealing block of moving mandrel lower in the separate space cover, the separate space cover is provided with diaphragm and diaphragm spring with sealing between the connecting rod; Offer D air cavity, C air cavity, B air cavity from top to bottom in the described separate space cover, the bottom of separate space cover offers the valve port of bringing gas port and A air cavity into; Offer blast tube on the described valve body, overlap interior B air cavity and D the air cavity adjustable direct air outlet channel that is connected and the road of exitting with separate space respectively, overlap access way and the servo pressure regulator gas-entered passageway that interior C air cavity is connected with separate space.During work, by the increase of electromagnetic coil voltage, control and the opening degree of adjusting sealing block on valve port, thus when electromagnetic coil voltage progressively raise, the flow of valve port progressively raise by 0, and opposite synchronous decline reaches the purpose of proportional control.
Also can be provided with concentrating flux sleeve between described moving iron core and the electromagnetic coil, magnetic shield, following concentrating flux sleeve etc.Described moving iron core also can be provided with sleeve pipe outward, is used for the motion guide when magnetic and start iron core slide up and down.
The utility model compared with prior art has following outstanding advantage and good effect:
1, has steady, the self-voltage regulation function of air-flow, by regulating the size of electromagnetic coil voltage and passage, utilize draught head to open valve port, automatically regulate airflow fluctuation and each air cavity pressure, make air-flow very steady, pressure surge is little, thus the gas flow that makes the valve port of flowing through lentamente by zero gradually to rating value.
2, on regulating, ratio utilize hydromechanical runner principle to adopt Control of Voltage preferably in conjunction with the magnetic circuit feature, compare with the voltage-controlled mode of existing leading type permanent magnet, avoided permanent magnet magnetic density conformity to be difficult to the accurately deadly defect of control, make control accuracy that large increase arranged, rate of fault also reduces greatly.
3, the utility model is suitable in the fields such as flame control, boiler control, domestic heating and accurate proportional control of fuel-burning equipment and the supporting use of gas safe heat supply ratio control system.
Description of drawings
Accompanying drawing is an overall structure sectional view of the present utility model.
Among the figure: 1 is sleeve pipe, and 2 are moving iron core, and 3 is last concentrating flux sleeve, and 4 is magnetic shield, 5 are following concentrating flux sleeve, and 6 is electromagnetic coil, and 7 is the thimble spring, and 8 is diaphragm, 9 is the D air cavity, and 10 is diaphragm spring, and 11 are the sealing connecting rod, and 12 is the C air cavity, 13 is the separate space cover, and 14 is the B air cavity, and 15 is valve port, and 16 is sealing block, 17 is the A air cavity, and 18 is gas inlet, and 19 is access way, and 20 is adjustable direct air outlet channel, 21 are the venting road, and 22 is the servo pressure regulator gas-entered passageway, and 23 is valve body, and 24 is blast tube.
Embodiment
The utility model is mainly by valve body 23, electromagnetic coil 6, place the moving iron core 2 of being with thimble spring 7 and sleeve pipe 1 in the electromagnetic coil 6, place the separate space cover 13 in the valve body 23, place the sealing connecting rod 11 of the band sealing block 16 that links to each other with moving iron core 2 bottoms in the separate space cover 13, place diaphragm 8 and diaphragm spring 10 between separate space cover 13 and the sealing connecting rod 11, place formations such as last concentrating flux sleeve 3 between moving iron core 2 and the electromagnetic coil 6, magnetic shield 4, time concentrating flux sleeve 5.Offer D air cavity 9, C air cavity 12, B air cavity 14 from top to bottom in the separate space cover 13, the bottom of separate space cover 13 offers the valve port 15 of bringing gas port 18 and A air cavity 17 into; Offer blast tube 24 on the valve body 23, respectively with separate space cover 13 in B air cavity 14 and D the air cavity 9 adjustable direct air outlet channel 20 and the venting roads 21 that are connected, the access way 19 and the servo pressure regulator gas-entered passageway 22 that are connected with C air cavity 12 in the separate space cover 13.
Below in conjunction with embodiment structure of the present utility model and working principle are further described:
During work, by sleeve pipe 1, moving iron core 2, on concentrating flux sleeve 3, magnetic shield 4, during the electromagnetic coil formed of concentrating flux sleeve 5, electromagnetic coil 6 makes up down, according to electromagnetism adhesive principle, the gap maximum of moving iron core 2 and following concentrating flux sleeve 5, so produce magnetic field in electromagnetic coil 6 energising backs, act in the magnetic conductive loop, moving iron core 2 has downward the suction-combining force.According to the electromagnetism mechanics principle, the suction-combining force feeds the increase of voltage along with moving iron core 2 and increases.The combustion gas of being passed through by blast tube 24 is in suction port 18 enters A air cavity 17, electromagnetic coil 6 energisings make iron core 2 have downward the suction-combining force, transmission by thimble spring 7 and sealing connecting rod 11, valve port 15 is opened, cause separate space cover 13 to be communicated with A air cavity 17, combustion gas by B air cavity 14 through adjustable direct air outlet channel 20 directly to exporting outflow.
Along with the increase of electromagnetic coil 6 voltages, the suction-combining force increases downwards, and the aperture of valve port 15 constantly increases, and combustion gas also is expelled to outlet by C air cavity 12 through venting road 21 simultaneously except that through adjustable direct air outlet channel 20 is discharged.When voltage increases again, the aperture of valve port 15 increases again, enter gas pressure in the B air cavity 14, C air cavity 12 greater than the gas pressure of discharging through adjustable direct air outlet channel 20, venting road 21 passages, cause combustion gas simultaneously in access way 19 enters guide's main valve, and open guide's main valve, make combustion gas directly be expelled to outlet, valve body is opened fully by blast tube 24.Otherwise descend when electromagnetic coil 6 feeds voltage, then rate of discharge reduces.So reach ratio regulatory function of the present utility model.
When closing after the utility model proper functioning, electromagnetic coil 6 outages are moved iron core 2 downward the suction-combining forces and are eliminated, and the gravity that diaphragm spring 10 overcomes moving iron core 2, thimble spring 7, sealing connecting rod 11, sealing block 16 upwards pushes up, and valve port 15 is closed.Owing to the access way 19 on the C air cavity 12, raise that gases have pressure in the clothes pressure governor gas-entered passageway 22, and the pressure of adjustable direct air outlet channel 20, the 21 connection outlets of venting road is low, so the gas in the separate space cover 13 flows out to outlet through adjustable direct air outlet channel 20 and venting road 21, thereby closes the guide proportion valve.
Claims (3)
1, a kind of gas safe heat supply proportional control guide proportion valve, comprise valve body (23), electromagnetic coil (6), place the moving iron core (2) of band thimble spring (7) in the electromagnetic coil (6), it is characterized in that being provided with in the valve body (23) separate space cover (13), be provided with the sealing connecting rod (11) with the mutually related sealing block in moving iron core (2) bottom (16) in the separate space cover (13), be provided with diaphragm (8) and diaphragm spring (10) between separate space cover (13) and the sealing connecting rod (11); Offer D air cavity (9), C air cavity (12), B air cavity (14) in the described separate space cover (13) from top to bottom, the bottom of separate space cover (13) offers the valve port (15) of bringing gas port (18) and A air cavity (17) into; Offer blast tube (24) on the described valve body (23), respectively with separate space cover (13) in B air cavity (14) and the adjustable direct air outlet channel (20) that is connected of D air cavity (9) and the road (21) of exitting, the access way (19) and the servo pressure regulator gas-entered passageway (22) that are connected with the interior C air cavity (12) of separate space cover (13).
2, by the described gas safe heat supply of claim 1 proportional control guide proportion valve, it is characterized in that also being provided with concentrating flux sleeve (3) between described moving iron core (2) and the electromagnetic coil (6) magnetic shield (4), following concentrating flux sleeve (5).
3,, it is characterized in that the outer sleeve pipe (1) that also is provided with of described moving iron core (2) by claim 1 or 2 described gas safe heat supply proportional control guide proportion valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03205019 CN2639641Y (en) | 2003-07-18 | 2003-07-18 | Pilot proportional valve for controlling fuel gas safety heat supply proportion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03205019 CN2639641Y (en) | 2003-07-18 | 2003-07-18 | Pilot proportional valve for controlling fuel gas safety heat supply proportion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2639641Y true CN2639641Y (en) | 2004-09-08 |
Family
ID=34287604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03205019 Expired - Fee Related CN2639641Y (en) | 2003-07-18 | 2003-07-18 | Pilot proportional valve for controlling fuel gas safety heat supply proportion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2639641Y (en) |
-
2003
- 2003-07-18 CN CN 03205019 patent/CN2639641Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |